Cellulitis is a bacterial infection in your skin.
Cellulitis is caused by germs (bacteria) that get into your skin. Bacteria are most likely to enter your skin where you have a cut, insect bite, scrape, burn, puncture wound, or patches of dry skin.
Cellulitis is often caused by Staphylococcus bacteria (staph infection). The type of staphylococcus known as MRSA is resistant to many antibiotics. A MRSA infection can be hard to treat.
People have a higher risk of getting cellulitis if they:
Skin redness, swelling, warmth, and pain
Sometimes blisters with yellow fluid
Sometimes fever and swollen lymph nodes (swollen glands)
Cellulitis usually starts as a small, red patch that's slightly sore. The infected area can get larger quickly. In a couple of days, it could spread from a spot the size of a quarter on your calf to cover your entire lower leg.
If the infection gets into the blood stream, you can have high fever, low blood pressure, and shut down of some of your organs (sepsis).
Keep skin wounds clean, cover them with a bandage, and apply an antibiotic cream for protection
Treat fungal foot infections (such as athlete’s foot) and other skin conditions to help heal any breaks in the skin
If you have diabetes or poor circulation, examine your feet every day, use a moisturizer, and avoid injury by wearing proper shoes